Home / 5,283.96-7,920.21-3,436.40

Finding the Fourth Proportional to 5,283.96, 7,920.21 and 3,436.40

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Solution

The fourth proportional to 5,283.96, 7,920.21 and 3,436.40 is: 5,150.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,283.96 : 7,920.21 = 3,436.40 : x
  2. Step 2: Convert to fraction form
    5,283.96/7,920.21 = 3,436.40/x
  3. Step 3: Cross multiply
    5,283.96x = 7,920.21 × 3,436.40
  4. Step 4: Simplify right side
    5,283.96x = 27,216,997.78
  5. Step 5: Solve for x
    x = 27,216,997.78/5,283.96
  6. Step 6: Final answer
    x = 5,150.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.